Cut-out



Patented May 17, 1927.

mvnv .r. amass, or Kaunas. Mmnnsom.

= bur-our.

Application filed August 23, 1923; Serial No. 658,876.

This invention relates to a cut out for use in connection with the exhaust pipe of an internal combustion engine and has for its principal object to provide means for causing the exhaust gases to be passed directly to the atmosphere whereby a rumbling sound simulating the sound of a racing automobile or aeroplane is obtained.

Another important object of the invention is to provide a cut out of the above mentioned character wherein the exhaust gases may be caused to be directed outwardly which will not only produce a pleasant sound but will also be adapted for use in places where the ordinary use of a cut out in discharging the exhaust gases to the atn'iosphere are prohibited.

In the accompanying drawings forming a part of the specification, and in which like numerals designate like parts throughout the same, T

Figure 1 is a sectional view of the valve casing showing the valve therein.

Figure 2 is a section taken on line 2--2 of Fi 1.

I In the drawings wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates generally the valve casing which is mounted upon t e exhaust pipe 2 1n the usual manner, the outer end of the exhaust pipe 2 leading to a suitable muflier (not shown). The valve casing which comprises thecut out is provided with a lower extension 4 which terminates in or is provided with a discharge opening 5. Thevalve casing 1 is provided with a valve 6 which is pivotally mounted at 7 and which is adapted to be seated at the upper end of the discharge opening 5 or at the point where the discharge opening 5 communicates with the horlzon tally arranged opening which forms the passage by which the exhaust gases pass from the internal combustion engine through the exhaust pipe 2 into the muiiier.

The valve 6 is normally seated in the valve seat 8 so that the exhaust gases will pass through the valve casing and into the exhaust pipe 2. A link 10 is connected to the valve 6 at 7 for the purpose of actuating the same.

Extending from the discharge opening 5 provided in the lower portion 4 of the valve casing 1, is a flexible pipe 12. This flexible pipe 12 may be made of any suitable material such as sheet metal or the like and 1 the chamber do not wish to confine myself to the particular material used. The outer end of the flexible pipe 12 :is adapted to be received in the intensifier.

The simplicity of my device enables the same to be readily and easily placed in use upon exhaust manifolds of any automobile and furthermore the results obtained by the use thereof, enable it to be used in such places as have heretofore had restricted use of the cut out due to the fact that the cut outs now in use produce a roaring sound the gases are directed into the atmosphere.

The parts of the device are compactly assembled and consequently the device may be applied Where space is limited, owing to the fact that the chamber forms part of the ex haust pipe and is provided at its side with an opening, there being a cut-out extension casing (letachably secured to said chamber at the sides thereof and provided at its side with an opening which registers with the side opening of the chamber. The chamber and extension casing are of the same length and the pivoted valve is mounted in bearings formed partially in the chamber and partially in the extension. Said valve is of a transverse thickness equal to the combined transverse thickness of the opposed walls of and the extension and is adapted to fit in both of said openings and completel fill them. Thus when the valve is in a c osed position in the opening the opposite side surfaces of the valve are flushed with the inner surfaces of both the chamber and the extension casing and when the valve is closed no part thereof is in the interior of either the chamber or the casing. Furthermore, the valve actually enters the opening in the extension casing.

From the foregoing description of the construction of my improved apparatus, it will be seen that I have provided a simple, inexpensive and efficient means for carrying out the objects of the invention, and while I have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion, and in the minor details of construction maybe resorted to, without departing from the spirit or sacrificing any of the principles of the invention.

I claim- A muflier cut-out valve structure comprising a chamber forming part of the exhaust pipe and provided at its sides with an openbeing of the same length, a pivoted valve mounted in bearings formed partially in the chamber and partially in the extension, said valve being of a transverse thickness equal to the combined transverse thickness of the opposed Walls of the chamber and the exteir sion and adapted to fit in both of said openinns and completely fill both of them.

In testimony whereof I afilx my signatme.

IRVIN J. OLNESS. 

